Add links for OPM1 / PPR1

These are configurable on master and match to OMR1 / P respectively in
PLATFORM_VERSION_CODENAME. Otherwise we get warnings about the asset
directories not existing (which may soon be an error if I can clean up
all the cases).

Test: lunch aosp_arm64-eng-OPM1; m -j nothing
Test: lunch aosp_arm64-eng-PPR1; m -j nothing
Change-Id: I1f7bbf7b74c3acb3972f4da04eb0f925285f79b2
diff --git a/hostsidetests/theme/assets/OMR1 b/hostsidetests/theme/assets/OMR1
new file mode 120000
index 0000000..978b4e8
--- /dev/null
+++ b/hostsidetests/theme/assets/OMR1
@@ -0,0 +1 @@
+26
\ No newline at end of file
diff --git a/hostsidetests/theme/assets/P b/hostsidetests/theme/assets/P
new file mode 120000
index 0000000..978b4e8
--- /dev/null
+++ b/hostsidetests/theme/assets/P
@@ -0,0 +1 @@
+26
\ No newline at end of file